Thank you, Leafie. I had to learn that we cant "give up" on somebody else. That implies we can control what they do. The only person on earh we can help or give up on is ourselves.
We can give up HOPE that somebody else will decide to change, but thats as far as we can go.
So showing an adult wayward child the door is not giving up on them. It is setting a boundary for ourselves and taking our lives back. Unless our adult children are physically or mentally impaired, they are the ones who can use this as an opportunity or decide to implode. Most survive their way, as you well know.
Hope that helped. Hard to explain...